{"podcast":{"title":"Ask the A&Ps","slug":"ask-the-a-ps-1305830","podcast_index_feed_id":1305830,"rss_url":"https://feeds.megaphone.fm/AOPA5756489272","website_url":"https://www.aopa.org/news-and-media/podcasts/podcasts","image_url":"https://megaphone.imgix.net/podcasts/6e2600a8-253c-11ec-b966-2b649faa65d2/image/3f2c3945c28a4e8805acbc7f7e374954.png?ixlib=rails-4.3.1&max-w=3000&max-h=3000&fit=crop&auto=format,compress","author":"AOPA","episode_count":108,"summary":"Experts Mike Busch, Paul New, and Colleen Sterling answer your toughest aviation maintenance questions. Submit questions to podcasts@aopa.org. New episodes are released the first and fifteenth of every month.","last_synced_at":"2026-07-02T04:20:46.276342+00:00","page_url":"https://stenobird.com/podcast/ask-the-a-ps-1305830"},"episode":{"title":"\"That'd be like putting grease on the road\"","slug":"that-d-be-like-putting-grease-on-the-road","published_at":"2025-08-01T12:13:00+00:00","page_url":"https://stenobird.com/podcast/ask-the-a-ps-1305830/that-d-be-like-putting-grease-on-the-road","show_page_url":"https://stenobird.com/podcast/ask-the-a-ps-1305830","url":"https://traffic.megaphone.fm/AOPA2938520371.mp3?updated=1770048524","audio_url":"https://traffic.megaphone.fm/AOPA2938520371.mp3?updated=1770048524","summary":"How to tell the difference between greases? Mike, Paul, and Collen break it down, plus high lean of peak temps, breaking in an engine on an experimental, and composite airframe cracks. Email podcasts@aopa.org for a chance to be on the show. Join the world's largest aviation community at aopa.org/join Full episode notes below: Mark wants to make sure he’s clear on which grease to use for which application. The manuals call for specific greases, but there are allowances for those with equivalent specs. But Mark wonders how to determine whether another grease is equivalent. Paul said you need to find the spec sheet for the grease the manufacturer recommends, and the spec sheet for the grease you’re thinking of using to make sure they more or less match. He also mentions Hartzell’s guidance that you can move up in grease numbers, but not down. Paul also cautions Cessna owners not to grease their flap tracks. They’re not meant to be greased, although the rollers are supposed to be lubricated. Grease Options March 24 2022, David Prizio, Kitplanes: https://www.kitplanes.com/grease-options/#:~:text=If%20your%20plane%20lives%20on,05%20and%20GN%2015%2C%20respectively For a full grease cross reference chart: EMTC https://emtc.aero/wp-content/uploads/2021/01/Mappe2.GREASE-XREF-1.pdf From the LPS product application guide: https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://pdf.directindustry.com/pdf/lps-laboratories/application-guide/11942-89226.html&ved=2ahUKEwjYgbmQiIiOAxVHHTQIHS21OzQQFnoECB4QAQ&usg=AOvVaw0KD4UOmbKMMo-0_4cGPymS Todd has a 2008 Cessna 400 that he just took delivery of. The airframe around the windscreen has a few little cracks that look like spider cracks. He’s read that there’s been an issue with this area and he’s w…","meta_description":"How to tell the difference between greases? Mike, Paul, and Collen break it down, plus high lean of peak temps, breaking in an engine on an experimental,…","key_points":[],"chapters":[],"topics":[],"duration_seconds":3736,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/ask-the-a-ps-1305830/episodes/that-d-be-like-putting-grease-on-the-road/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/ask-the-a-ps-1305830/that-d-be-like-putting-grease-on-the-road.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}